Jason Isenberg, M.D.
NPI 1043262439 · Otolaryngology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Isenberg, M.D. is a Otolaryngology Physician provider in Madison, WI (NPI 1043262439).
Provider details
- NPI number
- 1043262439
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47391-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
237 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $85 |
| Removal of Impacted Ear Wax69210 | 64 | $43 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 40 | $104 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 33 | $120 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $117 |
Typical Medicare-allowed amounts for these services range $43–$120 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 40 | — |
| Fluticasone Propionate | 21 | 14 |
| Omeprazole | 13 | — |
| Prednisone | 13 | 12 |
| Budesonide | 11 | — |
| Ofloxacin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2022-05-05
- Certified
- 2022-05-05
Frequently asked questions
- What is Jason Isenberg's NPI number?
- Jason Isenberg's National Provider Identifier (NPI) is 1043262439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Isenberg's specialty?
- Jason Isenberg is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Jason Isenberg located?
- Jason Isenberg's practice location on file with NPPES is 1211 Fish Hatchery Rd, Madison, WI 53715-1909.
- What is Jason Isenberg's phone number?
- The practice phone number listed in the NPPES registry for Jason Isenberg is (608) 252-8000.
- Does Jason Isenberg accept Medicare?
- Jason Isenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Isenberg's NPI active?
- Yes — Jason Isenberg's NPI (1043262439) is active in the NPPES registry as of the last update on 2022-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.